.az-menu{width:100%;float:left;box-sizing:border-box;padding:14px;background:#e9edf2;margin-bottom:20px;font-size:14px}@media (min-width:768px){.az-menu{font-size:16px}}.az-menu a{display:inline-block;padding:7px 4px;width:6.5%;line-height:16px}@media (min-width:768px){.az-menu a{width:26px}}.letter-section{font-size:14px;line-height:1}@media (min-width:768px){.letter-section{font-size:16px}}.letter-section .letter-header{font-weight:700;color:#335d53;padding:0 0 6px;font-size:32px}.letter-section .category-header{font-weight:700}@media (max-width:543.98px){.letter-section ul{margin-bottom:0}}.back-to-top{background:#e3eceb;box-sizing:border-box;padding:10px;text-align:right;width:100%;float:left;margin:0 0 30px;line-height:1}@media (max-width:543.98px){.back-to-top{font-size:14px}}